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Top Rated Freelancer | 100% Job Success | 48-Hour Emergency Turnaround I deploy, customize, and maintain open-source applications on Linux servers, and keep everything running, secure, and fast. What I do: → Open-Source App Deployment—install, configure, and customize self-hosted apps (Supabase, n8n, WordPress, Mautic, ERPNext, and more) on your VPS or cloud server, tailored to your workflow → Emergency Server Rescue — crashed servers, disk failures, boot issues, data recovery → Security Hardening — firewall configuration (iptables/UFW), SSL/TLS, VPN tunnels, vulnerability scanning → Production Hosting & Scaling — Nginx, Docker Compose, PostgreSQL HA clusters, Redis → CI/CD & Automation — GitHub Actions, Terraform, Ansible, zero-downtime deployments → Cloud Architecture — AWS, DigitalOcean, cost optimization, and migration Past results: → Deployed and customized 5+ self-hosted open-source platforms on production VPS for clients → Recovered critical data from failed dedicated server disks under extreme emergency timelines → Reduced client cloud spend by 65% through right-sizing and Infrastructure as Code (Terraform) → Slashed manual deployment times by 80% with automated CI/CD pipelines via GitHub Actions → Successfully resolved complex Nginx domain routing, SSL certificate configurations, and reverse proxy issues across multiple client domains Technical stack: OS: Ubuntu, Debian, CentOS, AlmaLinux, Fedora, NixOS Containers: Docker, Docker Compose, Kubernetes Web/Proxy: Nginx (virtual hosts, redirects, NAT resolution), Apache Databases: PostgreSQL (HA clusters), MySQL, Redis Automation: Terraform, Ansible, Bash scripting, Python Monitoring: Prometheus, Grafana dashboards, proactive log analysis Security: OpenVAS/GVM, Wireshark, Nmap, system call auditing I communicate clearly, respond within 4 hours, and document every step so you always know the exact status of your infrastructure.

Slow deployments? Surprise cloud bills? Migration to other Cloud or VPS? A production server nobody dares to touch? I fix that. Top Rated Plus, 100% Job Success, 3,600+ hours and 32 contracts on Upwork, not one below 5 stars. I'm a DevOps and Linux engineer 9+ years building, securing, and hardening infrastructure on AWS, Azure, GCP, and cost-efficient VPS platforms ( Contabo, Hetzner, Hostinger, DigitalOcean ) for healthcare, SaaS, eCommerce, and fintech companies across the Australia, US, UK, and Cayman Islands. Recent results I have delivered: ✅ Cut a clients cloud bill 60–80% migrated production workloads off hyperscaler pricing onto a lean, hardened VPS fleet with no loss of uptime ✅ Reduced deploy time from 20 minutes to under 2 rebuilt an ERPNext platform's release process around immutable Docker images and GitOps ✅ Cut CI/CD costs to $0 moved a healthcare client's Playwright E2E pipeline from GitHub-hosted to self-hosted runners with true parallel execution ✅ Zero public management ports hardened an Azure VM estate with Bastion, PIM, policy enforcement and tested recovery drills ✅ Full observability from scratch Prometheus, Grafana, Alertmanager and Blackbox monitoring across a multi server production fleet ✅ Point in time database recovery SQL Server backup automation with offsite sync and alerting for a live pharmacy platform What I can do for you: 🖥️ VPS Setup and Cloud Cost Reduction: Contabo, Hetzner, Hostinger, DigitalOcean. Full production builds with Docker, SSL, firewalls, backups, and monitoring. Moving off AWS or Azure to cut spend? 60–80%? I've done it many times. ☁️ Cloud & Infrastructure: AWS, Azure, GCP architecture, migration, cost optimization 🔄 CI/CD Pipelines: GitHub Actions, Jenkins, Azure DevOps, AWS CodePipeline 📦 Containers & Orchestration: Docker, Docker Compose, Kubernetes (EKS/AKS), Helm 🏗️ Infrastructure as Code: Terraform, Ansible, CloudFormation 🔐 Security & Compliance: server hardening, IAM least-privilege, firewalls, SSL/TLS, HIPAA and GDPR readiness 📊 Monitoring & Reliability: Prometheus, Grafana, ELK, CloudWatch, backup & disaster recovery 🐧 Server administration: Linux and Windows Server administration, Nginx, Apache, Proxmox, VMware, Veeam, Bash scripting Healthcare Grade by default: A large share of my work runs under real clinical load pharmacy systems, EHR platforms, lab integrations, HL7/FHIR interfaces and the disaster recovery behind all of it. That means I treat every server as though it holds patient data, because often it does: least-privilege access, encrypted backups, tested restores, and a documented recovery path before anything goes live. Clients outside healthcare get the same standard without having to ask for it. Why clients keep working with me: - Top Rated Plus: top 3% of Upwork talent, with long-term contracts (some 6+ months and ongoing) - Certified DevOps Administrator and Linux Foundation Certified SysAdmin (LFCS) - Healthcare-grade security mindset: I treat every server like it holds patient data because often it does - Clear communication, documented handovers, no disappearing acts Whether you're a startup that needs its first proper pipeline, a company moving from expensive cloud to a lean VPS, or a team drowning in infrastructure debt message me. I usually respond within a few hours. Let's make your infrastructure boring, in the best possible way: fast, secure, and something you never have to think about. Umer.

Full-stack SaaS and AI developer. I build scalable, production-ready platforms and integrate AI that works reliably in the real world. I recently fixed a PHP Laravel React Symfany | Next JS SaaS platform that was struggling with slow dashboard performance and unstable queue jobs. The main issue turned out to be inefficient database queries and poorly structured background processing. After restructuring queues, optimising queries, and introducing caching, page load time dropped by nearly 60%. I leverage a modern AI-assisted workflow (OpenAI, Cursor & Claude Code) to speed up development, refactoring, and debugging. However, I do not blindly ship AI-generated code. Every change is manually reviewed, tested, and adjusted to ensure it matches your specific architecture and business logic. 🚀 Looking for a Senior Full Stack Developer who can build, scale, optimize, and take ownership of your product long-term? I am a Senior Full Stack Software Engineer with 10+ years of experience helping startups, SaaS companies, and established businesses build high-performance web applications, AI-powered platforms, internal systems, CRMs, marketplaces, mobile applications, and enterprise software. Recently, I helped a Laravel + Next.js SaaS platform reduce dashboard load times by nearly 60% by optimizing database queries, restructuring queue systems, and implementing intelligent caching strategies. I don't just write code—I solve business problems, improve scalability, and help products grow. ⚙️ Core Expertise ✅ Full Stack Development ✅ SaaS Platform Development ✅ AI Applications & Automation ✅ API Development & Integrations ✅ System Architecture & Technical Leadership ✅ Performance Optimization ✅ Cloud Infrastructure & DevOps ✅ MVP Development ✅ Enterprise Software Development ✅ CRM & ERP Systems ✅ Marketplace Platforms ✅ Booking Systems ✅ Internal Business Tools 🧠 AI & Automation ✅ OpenAI / ChatGPT Integrations ✅ AI Agents ✅ Workflow Automation ✅ N8N Automation ✅ AI SaaS Applications ✅ AI Chatbots & Assistants ✅ Document Processing Systems ✅ LLM-Powered Products ✅ AI Content & Data Workflows ✅ Custom AI Integrations 🧱 Backend Development ✅ PHP ✅ Laravel ✅ Symfony ✅ CodeIgniter ✅ CakePHP ✅ Yii / Yii2 ✅ REST APIs ✅ GraphQL ✅ Microservices ✅ FilamentPHP ✅ Livewire 🎨 Frontend Development ✅ React.js ✅ Next.js ✅ Vue.js ✅ Nuxt.js ✅ Angular ✅ TypeScript ✅ JavaScript (ES6+) ✅ Tailwind CSS ✅ Bootstrap ✅ Alpine.js ✅ jQuery ✅ AJAX ✅ Realtime Applications ✅ WebSockets 🗄️ Databases & Data ✅ MySQL ✅ PostgreSQL ✅ MongoDB ✅ Redis ✅ Firebase ✅ Firestore ✅ Supabase ✅ MSSQL ✅ Elasticsearch ☁️ Cloud & DevOps ✅ AWS ✅ Microsoft Azure ✅ DigitalOcean ✅ Docker ✅ CI/CD Pipelines ✅ Linux Administration ✅ Ubuntu ✅ AlmaLinux / RHEL ✅ cPanel / WHM ✅ Server Optimization ✅ Application Scaling 🛒 CMS & E-Commerce ✅ WordPress ✅ Shopify ✅ Magento ✅ Shopware ✅ PrestaShop ✅ Custom Themes & Plugins 🔗 Integrations ✅ Stripe ✅ PayPal ✅ Twilio ✅ Google APIs ✅ Google Maps ✅ Xero ✅ Mailchimp ✅ CRM Integrations ✅ ERP Integrations ✅ Payment Gateways ✅ Third-Party APIs 🚀 What I Build • SaaS Platforms • AI-Powered Products • CRM & ERP Systems • Marketplaces • Booking Platforms • Membership Platforms • Admin Dashboards • Internal Business Tools • Customer Portals • Mobile Applications • Automation Systems • Enterprise Applications • API Platforms Why Clients Hire Me: ✔️ 10+ Years of Professional Development Experience ✔️ Strong Product & Business Understanding ✔️ Clean, Maintainable, Scalable Code ✔️ Excellent Communication ✔️ Reliable Long-Term Technical Partner ✔️ Proven Experience Rescuing Struggling Projects ✔️ Full Ownership From Architecture to Deployment ✔️ Focus on Business Outcomes, Not Just Features I work best with businesses looking for a long-term technical partner who can take ownership of architecture, development, optimization, and future growth. Whether you're building a new SaaS product, integrating AI, modernizing a legacy application, scaling an existing platform, or need a senior engineer to lead development efforts, I can help. Let's discuss your project and create something exceptional.

I help startups and growing businesses build fast, scalable SaaS platforms, AI-powered applications, custom ERP systems, and web and mobile apps using Python, Laravel, React Native, Next and React. I work as a full stack developer who can take a product from idea to production with clean code and predictable delivery. If you need a reliable web developer for modern UI work and a strong mobile app developer for iOS/Android builds, I can cover both while staying hands-on as a full stack developer focused on performance, UX, and maintainability. I’ve delivered solutions for founders who need speed now and stability later, and I communicate clearly at every step.🔥 I’m an experienced Web engineer, React and Next.js engineer, Vue engineer, and React Native engineer with 7 years of production experience. As a full stack developer I can build backend APIs, admin panels, dashboards, and customer-facing apps, and as a web developer I pay attention to UI details that improve conversion and retention. I’ve completed a wide range of successful projects, from MVPs to large systems with long-term maintenance and continuous improvements. 🚀I also lead a web development team, techXen Solutions . We have multiple Laravel developers (Senior PHP and Custom PHP MySQL), Python (Django), and JavaScript (React, Vue, React Native) developers. If your project needs a dedicated mobile app developer, we can staff that role quickly, while I stay involved as a full stack developer to keep architecture, delivery, and communication aligned. When the UI scope grows, a senior web developer can join the project while I remain the full stack developer responsible for end-to-end quality.🚀 Our team has already worked in such industries as: ✅ Inventory & Warehouse Management ✅ Marketplace ✅ E-commerce ✅ Travel and Hospitality ✅ Custom ERP (Enterprise Resource Planning) ✅ AI & Automation (AI Agents, AI Calling Agents, Voice AI, LLMs, Chat) ✅ Automotive (car inspection, automotive ERP, car sharing, rental, selling) ✅ Social media (Tinder-like networks, short video platforms, communities) ✅ Sales (CRM systems for sales teams, retail, hospitals, sales departments) ✅ Sport (gym management systems, trainer platforms, fitness apps, club portals) ✅ Legal (document automation, AI-assisted legal processing) ✅ Healthcare (clinic management, booking, mental health software) ✅ Education (LMS, automated training, coaching marketplaces) ✅ Finance (fintech platforms, investment platforms, bank API integrations, calculators) ✅ Manufacturing (shop floor management and automation) ✅ Human resources (HRM systems) ✅ Digital marketing (Meta, Facebook/Instagram, TikTok, Google APIs, analytics) Stack of technologies we use: ✅ HTML/CSS, Bootstrap, Tailwind ✅ JavaScript (React, Next.js, Vue, Node.js, Express, AdonisJS, Nuxt) ✅ React Native for cross-platform mobile delivery ✅ API integrations (Stripe, PayPal, Twilio, TextMagic, Xero, DocuSign, Google Maps, Meta APIs, and more) ✅ API development (Laravel, Node/Express, Firebase, Python/Django, Go, REST, GraphQL) ✅ PWA (Progressive Web App) ✅ Databases: MySQL, PostgreSQL, MongoDB, DynamoDB, Elasticsearch ✅ Infrastructure: AWS, DigitalOcean, Firebase, Supabase ✅ DevOps and administration: LAMP, CentOS, Ubuntu As a full stack developer, I connect the front end, back end, and infrastructure so releases are smooth. When the scope includes native-like UX, I can collaborate with a mobile app developer without slowing down the API roadmap, and a web developer can refine UI flows while we keep the backend stable. You can hire me as a full stack developer for full ownership, or extend the team and keep me as the full stack developer leading architecture and delivery. If timelines are tight, add a mobile app developer to parallelize mobile features, and add a web developer to accelerate dashboards and front-end work. 🚀 Buzz words clients search for: website development, JavaScript, React MySQL, Amazon Web Services, API integration, AI Agents, CRM, custom ERP, REST, GraphQL, Laravel, React, Next js, Vue, React Native. If you need a full stack developer who can also guide a delivery team, I’ve done that for years. If you need a reliable mobile app developer for consistent releases and store readiness, we can support that too, and if you need a web developer for pixel-perfect UI, that’s covered. In our work history you’ll find successful products built with React, JavaScript, MySQL, React, Vue, and React Native, plus multiple systems built with Python (Django, Flask, FastAPI). I also use LLM capabilities and AI APIs (including OpenAI integrations) when they genuinely improve the product experience. We have 15 senior developers across React, JavaScript, MySQL, Python, Go, and Node.js. As a full stack developer, I can jump into an existing codebase, stabilize releases, fix bottlenecks, and plan the next iterations. Please contact me for further details and fruitful work. Best regards, Asmar Naeem CEO, TechXen Solutions